import axios from 'axios'

const service = axios.create({
    responseType: 'arraybuffer'
})

service.interceptors.request.use(config=>{
    config.headers['Authorization'] = window.sessionStorage.getItem('tokenStr');
    return config;
}, error => {
    console.log(error);
})

service.interceptors.response.use(resp => {
    const headers = resp.headers;
    let reg = RegExp(/application\/json/);
    if (headers['content-type'].match(reg)){
        resp.data = unitToString(resp.data);
    }else {
        let fileDownload = require('js-file-download');
        let fileName = headers['content-disposition'].split(';')[1].split('filename=')[1];
        let contentType = headers['content-type'];
        fileName = decodeURIComponent(fileName);
        fileDownload(resp.data, fileName, contentType);
    }
},error => {
    console.log(error);
})

function unitToString(unitArray) {
    let encodedString = String.fromCharCode.apply(null,new Uint8Array(unitArray));
    let decodedString = decodeURIComponent(escape(encodedString));
    return JSON.parse(decodedString);
}


let base = '';
export const downloadRequest=(url,params) => {
    return service({
        method:'get',
        url:`${base}${url}`,
        data:params
    })
}


export default service;